Home / 75,378,528.72-104,023,303.88-42,345,993.20

Finding the Fourth Proportional to 75,378,528.72, 104,023,303.88 and 42,345,993.20

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Solution

The fourth proportional to 75,378,528.72, 104,023,303.88 and 42,345,993.20 is: 58,437,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,378,528.72 : 104,023,303.88 = 42,345,993.20 : x
  2. Step 2: Convert to fraction form
    75,378,528.72/104,023,303.88 = 42,345,993.20/x
  3. Step 3: Cross multiply
    75,378,528.72x = 104,023,303.88 × 42,345,993.20
  4. Step 4: Simplify right side
    75,378,528.72x = 4,404,970,118,744,013.50
  5. Step 5: Solve for x
    x = 4,404,970,118,744,013.50/75,378,528.72
  6. Step 6: Final answer
    x = 58,437,995.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.